Heating apparatus



(No Model.) 3 Sheets-Sheet 1.

-o. op MULPORD. HEATING APPARATUS.

NQ. 554,713. Patented Feb. 18, 1896.

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HEATING APPARATUS.

No. 554,713. Patented Peb. 18, 1896.

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C. C. MLFORD. HEATING APPARATUS.

Patenteg Feb; 18, 1896.

A 12, @5113 [ml-li- T472' in 61,9@ es NITED STATES ATENT OFFICE.

CLARENCE C. MULFORD,.OF ST. LOUIS, MISSOURI.

HEATING APPARATUS.

SPECIFICATIONforming part of Letters Patent No. 554,713, dated February18, 1896. Application iled March 22, 1895. Serial No. 542,834. (Nomodel.)

To LZZ whom t may concern:

Beit known that I, CLARENCE C. MULFORD, a citizen of the United Statesof America, residing in St. Louis, in the State of Missouri, haveinvented certain new and useful Improvements in Heating Apparatus, ofwhich the following is a clear, full, and exact description, referencebeingmade to the accompanying drawings, vforming a part of thisspecification.

My invention relates to steam and hot-water generators, heaters, andradiators and similar apparatus requiring the union of sectional parts;and its object is to provide a method of constructing' such apparatus sothat all leakage may be prevented, and the simplest and most durableconstruction obtained.

In the construction of apparatus for containing water or steam, composedof sections, it is common to secure the several parts together by meansof a tie rod or bolt which eX- tends through all the sections and at oneor both ends extends or projects from the section forming the outer partof the construction. Experience shows that this is objectionable, as, byreason of contraction and eXpansion of the parts, it is very diiiicultto prevent leakage at the point where the rod passes out of the waterorsteam sections. It is also very diiiicult to lay up an entire heaterinthis way without displacing or injuring the packing between thesections, thus causing a leak.

My invention is intended to avoid the objectionable features referredto, and also to facilitate the assembling of the several sections toform an integral whole. For this purpose my improvement consists in soconstructing and arranging the several sections that short bolts may beemployed to firmly secure adjacent parts 'of the two sections, while thebolts are entirely within the water or steam way at all points.

I will now describe my invention in connection with the accompanyingdrawings, wherein like reference-letters indicate like or correspondingparts, in which- Figure lis a vertical section of my improvement asapplied to a heater. Fig. 2 is a lower section or water-jacket fire-potof said heater. Fig. 3 is a second section of said heater designed torest upon the fire-pot. Fig. 4 is a plan of the preferred form ofadditional sections of said heater. Fig. 5 is an enlarged sectional viewshowing the preferred way of securing the sections together. Figs. 6,12, and 13 show the removable bars used in my improved constructions.Fig. 7 is a sectional view showing one way in which the tie-bolts may bearranged so as not to interfere with the use of a wrench. Figs. 8 and 9are views 6o of modifications. Fig. l0 is a longitudinal section at theline 2 2 of Fig. 1l of my improvement as applied to a radiator. Fig. 1lis a plan of said radiator, and Figs. 14 and l5 are views of thepreferred way of forming the 6 5 packing in said radiator to preventleakage.

In theV drawings, A represents the waterjacket nre-pot of a heater; B,the adjoining section, and C and D successive sections of heaters,radiators, dto. In each of the sec- 7o tions are water-openings d b c d,so arranged as to register with similar openings on other sections.Extending across the said openings, either at the bottom of thesections, or the top, or both, as preferred, is constructed a bar,bridge or anchor a Z9 c d. These bars, bridges or anchors are preferablynot constructed so as to all come in the same straight line, but thoseupon separate sections which will become adjacent to each other inputting 8o together the apparatus register with each other, as shown.(See Fig. 7 This permits a wrench to be used without hinderanee intightening the bolts.

In the preferred form only one anchor or bridge is cast integral withthe section, and on only one side of the section, as in Figs. l, 5, 7and l0, and a separate bar E is used to complete the connection. This isfound in practice to be most convenient in constructing the apparatus.

The mode of operation is as follows: A section (in the case of a heater,the lire-pot) is placed in position, and a proper gasket fitted aboutthe water-opening. Another section 95 is then placed upon the first, andthe bar E is laid against projections forming part of the section. Thebolt Fis then inserted, and by anypreferred way, as by screw-thread,screwnuts, keys or hooks, the adjacent sections are roo drawn closelytogether and firmly held.v Va- I ter may then be introduced to nearlythe top of the second section to test the joint. Succeeding sections, asC and D, may then be placed in position and in like manner secured inplace, packing being placed between the meeting portions.

The last section in a heater may be a dome G, which I prefer to securein a similar manner, closing the outer opening therein by a plug H.

The pipe connections are the same as those usually employed and need noexplanation.

In the modified form shown in Fig. the fastening-bars K K are separablefrom the sections, while in Fig. 9 a spiderL is used in place of asingle bar for the same purpose. Fig. 7 shows plainly how the anchorsorbrid ges are oiset one from the other to permit the insertion and useof the wrench.

The preferred method of applying my improvements to radiators, eine. isshown in Figs. l0 to 15, inclusive. As an additional security againstleakage, I prefer to use the packing-ring J in such radiators. In otherrespects the method of connecting the adjacent sections is similar tothat already described.

Having thus described my invention, what I claim new, and desire tosecure by Letters Patent, is-

1. In a heating apparatus, a plurality of sections having openingstherein, and bridges extending across said openings; a series ofremovable bridges adapted to extend across S both said openings, andmeans for preventing leakage between said sections; in combination witha series of short bolts adapted to extend from the bridge in one sectionto the adjacent bridge in the next succeeding section and to be securedthereto; and means for placing a strain on said bolts; substantially asdescribed.

2. A heating apparatus, consisting of a water-jacket adapted for use asa iirepot; a series of openings formed in thc upper surface thereof topermit the passage oit' water, and having bridges extending across thesame; one or more water-rin gs constructed substantially as described,having similar openin gs formed therein; similar bridges formed integralwith the section extending across some of the openings; removablebridges adapted for use in the remaining openings; means for preventingleakage between the sections; and a suitable dome or top therefor; incombinan tion with a series of short bolts adapted to extend from thebridge in one section to the adjacent bridge in the next succeedingsection; and means for placing a strain on said bolts; substantially asdescribed.

CLARENCE C. MULFORI).

In presence of- V. H. II. MULFORD, XV. C. FLICK.

